Representative commodity for six leafy vegetables based on the determination of six pesticide residues by gas chromatography

• Autorzy: Song Shiming , Huang Huili , Chen Zhaojie , Wei Jie , Deng Cheng , Tan Huihua , Li Xuesheng

Identyfikatory

DOI

10.1556/1326.2017.00345

• Języki publikacji: EN

Abstrakty

EN

A residue analytical method was developed for the determination of trichlorfon, chlorpyrifos, dimethoate, β cypermethrin, deltamethrin, and chlorothalonilin in six leafy vegetables by gas chromatography–electron capture detector (GC–ECD) and gas chromatography–flame photometric detector (GC–FPD). The method had a good linearity (R2 ≥ 0.9924) and precision (RSD ≤ 14.0%). The limits of quantification (LOQ) of six pesticides were all 0.01 mg/kg. Average recoveries of six pesticides ranged from 81% to 119%. The developed method was successfully applied to study the initial deposits, degrade characteristics, and terminal residues for six pesticides applied to six leafy vegetables under the same dose of formulation. The half-life of six pesticides was in the range of 0.8–8.8 days. The highest initial deposits, maximal residues, and terminal residues were found on leaf mustard and sweet potato leaves as the same pesticides were applied in different crops. Therefore, leaf mustard can be selected as representative commodity in the same subgroup to realize the residual extrapolation. This conclusion should be considered as a complement on crop classification of China.

Słowa kluczowe

EN

Leafy vegetables; six pesticides; representative commodity; residues; GC–ECD; GC-FPD

• Wydawca: University of Silesia in Katowice ; Akademiai Kiado
• Czasopismo: Acta Chromatographica
• Rocznik: 2019
• Tom: Vol. 31, no. 1
• Strony: 49--56
• Opis fizyczny: Bibliogr. 25 poz., rys.

Twórcy

autor

Song Shiming

• Institute of Pesticide and Environmental Toxicology, Guangxi Key Laboratory Cultivation Base of Agro-Environment and Agro-Product Safety, Guangxi University, Nanning 530005, China

autor

Huang Huili

• Institute of Pesticide and Environmental Toxicology, Guangxi Key Laboratory Cultivation Base of Agro-Environment and Agro-Product Safety, Guangxi University, Nanning 530005, China

autor

Chen Zhaojie

• Institute of Pesticide and Environmental Toxicology, Guangxi Key Laboratory Cultivation Base of Agro-Environment and Agro-Product Safety, Guangxi University, Nanning 530005, China

autor

Wei Jie

• Institute of Pesticide and Environmental Toxicology, Guangxi Key Laboratory Cultivation Base of Agro-Environment and Agro-Product Safety, Guangxi University, Nanning 530005, China

autor

Deng Cheng

• Institute of Pesticide and Environmental Toxicology, Guangxi Key Laboratory Cultivation Base of Agro-Environment and Agro-Product Safety, Guangxi University, Nanning 530005, China

autor

Tan Huihua

• Institute of Pesticide and Environmental Toxicology, Guangxi Key Laboratory Cultivation Base of Agro-Environment and Agro-Product Safety, Guangxi University, Nanning 530005, China

autor

Li Xuesheng

• Institute of Pesticide and Environmental Toxicology, Guangxi Key Laboratory Cultivation Base of Agro-Environment and Agro-Product Safety, Guangxi University, Nanning 530005, China

Bibliografia

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Uwagi

PL

Opracowanie rekordu w ramach umowy 509/P-DUN/2018 ze środków MNiSW przeznaczonych na działalność upowszechniającą naukę (2019).